GIS is made to provide specific answers and insights for decision making. It has the capability to process huge amounts of data for extracting useful information. The questions that a GIS can answer are mainly:
What is at……?
–(Location question ; what exists at a particular location)
Where is it…..?
–(Conditional question ; which locations satisfy certain conditions)
How has it changed…….?
–(Trendy question ; identifies geographic occurrence or trends that have changed or in the process of changing)
Which data are related …….?
–(Relational question : analyzes the spatial relationship between objects of geographic features)
–(Model based question ; computers and displays an optimum path, a suitable land, risky area against disasters etc. based on model)
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